People arriving by coach or train were told to travel as planned but to be prepared for "your journey to take longer than usual".

Paige Kelly, 24, from Liverpool, arrives for the Glastonbury festival at the Worthy Farm site, Somerset, where heavy rain over a prolonged period has caused isolated flooding and muddy fields. Yui Mok/PA Wire

A major crash in the area added to congestion today, while two of the three festival car parks are reported to be closed.

The Glastonbury organisers said in a statement: ""If you have set off and have yet to reach the site, please stop somewhere safe and warm."

They added: "If you are already queuing to get into the site, please bear with us and follow the instructions from the signage and traffic managers.

"If you are coming to the festival by coach or train, please set off as planned. But please be prepared for your journey to take longer than usual."